I am having problems with changes made to my website not updating/deleting previous work. If you refer to morgancarnold.com/video, you can see I have a background image that gets covered when scrolling down by a title and an embedded video. I essentially want to duplicate those three elements multiple times but I am unable to do so. Once I was able to get three of those sections (background, title, video), then I changed some text or something and updated and I was left with just the first section (background image, title, embedded video). I just tried again and I was able to save and additional background image, then an additional title, but when I updated after adding an embedded video the page reverted back to just showing the first background image, title and video.

Please advise